Forum - Recent Threads

RE: Learn about the new AMD Kintex UltraScale+ Gen 2 FPGA Family!

kmikemoo — Fri, 20 Feb 2026 01:06:14 GMT

I should say the same but I just rediscovered (found) my PYNQ-Z2. 😂 Fortunately, ralphjy , balearicdynamics and Jan Cumps have left enough of a breadcrumb trail that I'm trying to bring it to life.

Learn about the new AMD Kintex UltraScale+ Gen 2 FPGA Family!

bhfletcher — Thu, 19 Feb 2026 16:11:06 GMT

Hello E14 community!

AMD recently announced Kintex UltraScale+ Gen 2 FPGAs, a new mid-range FPGA family. You can read about it in this Blog.

Next week on Feb 25, I will present an overview of the family architecture and answer questions. Please register and join me!

https://webinar.amd.com/Outscale-Your-Competition-with-the-New-AMD-Kintex-tm-UltraScale-tm-Gen-2-FPGA-Family/en/registration

Thanks,

Bryan

RE: Learn about the new AMD Kintex UltraScale+ Gen 2 FPGA Family!

DAB — Thu, 19 Feb 2026 22:19:41 GMT

Cool part, but my days of working with this technology has passed.

RE: TAA Compliance for parts

phoenixcomm — Sun, 09 Apr 2023 19:34:47 GMT

gsa.federalschedules.com/resources/taa-designated-countries

TAA Compliance for parts

colsa — Wed, 05 Apr 2023 12:30:42 GMT

Is EK-VCK190-G and EK-VMK180-G TAA COMPLIANT?

SQRL Acorn as Artix-7 dev board?

Fred27 — Thu, 09 Apr 2020 13:14:39 GMT

I keep seeing SQRL Acorn CLE-215 boards appearing on eBay. From what I can tell they were intended for crypto mining, but didn't go down well due to the necessary software not appearing. Cue a lot of angry people and boards being sold on eBay.

Considering it's an Artix-7 and it has a M.2 interface plus a JTAG header, I was wondering if this would make an interesting board to play around with. My gut feel is that any PCIe work is probably advanced stuff and that it would end up gathering dust. Just thought I'd ask and maybe put others onto a good deal - at eBay prices that is, not the original selling price.

Link to manufacturer: Acorn CLE-215 | SQRL

Anyone have an opinion?

RE: SQRL Acorn as Artix-7 dev board?

Fred27 — Sun, 24 May 2020 13:06:10 GMT

Well, after deciding that it was more trouble than it was worth, I ended up making an impulsive eBay purchase. No, I wasn't drunk!

Quite fortuitously, it turns out that it might be just the thing for the Project14 Hardware Hacking challenge. If you're interested, you'll be able to follow my progress here: Do mighty oaks from SQRL Acorns grow?

RE: Importing Arduino library files into PYNQ?

kevin_v — Fri, 22 May 2020 16:29:26 GMT

Thanks for pointing out some of the areas i should look into to when modifying the .h and .cpp files. Sure seems like a lot of stuff to go through though. If you look at my response to Fred's comment you will see a description of what i am trying to achieve. I probably have to import 10 or less files. Do you think it worth me taking the time to modify each files or just make my own header files of what i need to make the screen to work?

Importing Arduino library files into PYNQ?

kevin_v — Fri, 22 May 2020 00:55:54 GMT

Hello,

Does anyone here have experience with taking Arduino .h file type and was able to modify it to be used with pynq and juptyer? If so, could you include a modified file and the original file it was based off of, so i can take a look at both to understand what changes are needed to be made.

I know there is a document on the pynq website that explains how to make a header files but at least for me its not easy to follow. Here is the link to the document i am referring to:

https://pynq.readthedocs.io/en/latest/overlay_design_methodology/pynq_microblaze_subsystem.html?_ga=2.228378772.86472398…

Thanks

RE: Importing Arduino library files into PYNQ?

kevin_v — Fri, 22 May 2020 16:19:25 GMT

Thanks for pointing out that the code might have been based off of MS432. Awhile back i was trying to find the original library the lcd18 library was based on but with no luck. i will take a look at it and see if its what i am looking for.

RE: Importing Arduino library files into PYNQ?

kevin_v — Fri, 22 May 2020 16:14:48 GMT

Yes, it would be best for me to explain what i am doing. I am trying to get my RA8875 display to work with my pynq board.

Below is the link to the display i am using:

https://learn.adafruit.com/ra8875-touch-display-driver-board/arduino

For any .c files i make to work with the screen i need to include both Adafruit_RA8875 library and Adafruit-GFX-Library.

Here are links to both bellow:

https://github.com/adafruit/Adafruit_RA8875

https://github.com/adafruit/Adafruit-GFX-Library

When i look through both libraries i noticed so many .h and .cpp were being used that it didn't make sense to use %%microblaze base_overlay.arduino.

Right now i am trying to decide if it worth taking the time to go through every file (probably 10 or less files) and modify them to work with pynq to get this screen to work.

RE: Importing Arduino library files into PYNQ?

phoenixcomm — Fri, 22 May 2020 13:58:07 GMT

kevin_v Ok, let me show you the relationship between .h and .cpp or .c. First a file.h is a header file that only allows access to some (public) functions in file.cpp.

Second, both of the processors in question PYNQ and Arduino are two different hardware platforms. Third not only would you have to change all of the addressing but look at

pinmode(n, INPUT): what are you going to do now? Yes this will have to change to the PYNQ code. along with any ping definitions. again what abut digital.Write() same o' same o', etc.

So in closing "Never Give Up, Never Surrender!" .. Capt. Jason Nesmith, NSEA Protector

RE: Importing Arduino library files into PYNQ?

beacon_dave — Fri, 22 May 2020 10:49:33 GMT

Not sure if you have seen it or not but there is an example included with the PYNQ-Z1/Z2 build on using the Adafruit 1.8" LCD (Arduino) Shield on the PYNQ-Z1/Z2 and accessing it with Jupyter Notebooks.

Arduino_LCD18 notebook:

https://github.com/Xilinx/PYNQ/blob/master/boards/Pynq-Z1/base/notebooks/arduino/arduino_lcd18.ipynb

source:

https://github.com/Xilinx/PYNQ/tree/master/pynq/lib/arduino/arduino_lcd18/src

Looks like it started off as a MS432 Launchpad project which Adafruit then adapted for use with Arduino, and which then Xilinx adapted it for use with PYNQ.

However, perhaps you can compare the Adafruit Arduino code with the Xilinx PYNQ code to see what changes were made.

Note that this PYNQ example appears to relate to the original v1 version of the Adafruit 1.8" LCD Shield and not the current v2 version. In the v2 version, Adafruit changed the analogue based output for the joystick switch to a digital I2C output using their 'seesaw' interface, and added three additional input buttons.

There are a couple of additional Arduino shield examples in the PYNQ build for the Sparkfun 14180 'Ardumoto' and 9760 joystick shields:

https://github.com/Xilinx/PYNQ/blob/master/boards/Pynq-Z1/base/notebooks/arduino/arduino_ardumoto.ipynb

https://github.com/Xilinx/PYNQ/blob/master/boards/Pynq-Z1/base/notebooks/arduino/arduino_joystick.ipynb

RE: Importing Arduino library files into PYNQ?

Fred27 — Fri, 22 May 2020 08:05:30 GMT

What exactly are you trying to achieve? The primary function of C header files is to describe the signature of functions that are implemented elsewhere - either in a matching C source file or a compiled library. There would be no point including the header file unless you had also ported over the code that goes with it.

RE: Problem with PYNZ-Z2 and HDMI output from camera

beacon_dave — Sun, 26 Apr 2020 19:03:59 GMT

The Crosstour CT7000 camera arrived this afternoon but the PYNQ-Z2 base_overlay_video notebook example isn't working with it either.

Can't get it to route through to the HDMI output or to get to capture a frame. As with the Apeman A66 it is detecting that there is an external device connected as it is switching to external display mode.

This camera does support FPV mode however and will output live video to a directly connected HDMI display.

Inserting a scaler between the camera and the PYNQ-Z2 and the base_overlay_video examples start to work but the scaler doesn't handle signal correctly from the camera. So 'close but no cigar'.

There doesn't appear to be an option to disable the on screen display like there was with the Apeman A66, and there doesn't appear to be an option to change the output resolution of the live video.

RE: Problem with PYNZ-Z2 and HDMI output from camera

beacon_dave — Sat, 18 Apr 2020 15:11:04 GMT

Yes, I also discovered that the connectors are spaced rather close together for this test.

In the meantime I've ordered up one of the latest recommended Crosstour action cameras, as one of the sellers appears to suggest that they will do live video continuously out of the micro HDMI port:

however that was posted over a year ago, so if they have undergone the same firmware updates as the Apeman range of cameras appear to have, then I may still be no further forward.

( If that turns out to be the case then at least I'll be able to use the second camera to video the other camera not working... )

I also looked around at a number of other camera options but most appear to be a bit vague on this aspect. Some of the FPV forums appear to have similar issues in identifying suitable cameras. Some higher end helmet cameras and microscope type cameras appear to offer the functionality but at around 10x the cost.

It's good to identify these sort of issues prior to the workshop however as a lot of time can be lost answering questions trying to get people's setups to work.

As for the Android tablet, I've read about image orientation issues in machine vision applications before. Here is one article where I saw it mentioned:

https://medium.com/@ageitgey/the-dumb-reason-your-fancy-computer-vision-app-isnt-working-exif-orientation-73166c7d39da

RE: Problem with PYNZ-Z2 and HDMI output from camera

ralphjy — Thu, 16 Apr 2020 21:03:37 GMT

A quick update:

Thought I'd try seeing if there was an HDMI output when in USB Webcam mode - did not get past square one - the connectors are spaced too closely together to plug in simultaneously. I had a similar problem with my LapDock except the cables were both female and in this case they are both male. It was quite a pain to shave down the connectors and I don't have any cables to spare so I'm going to quit. Let me know if you get to manage to try this.

Also tried my Android tablet (Dragon Touch K10). The HDMI out works fine with my Dell U2518 but using the setup in the PYNQ-Z2 the image was noisy (a small smattering of off color pixels). Also the display was rotated 90 degrees. It isn't rotated on the Dell. I guess at some point this will all make sense .

RE: Problem with PYNZ-Z2 and HDMI output from camera

ralphjy — Thu, 16 Apr 2020 20:01:31 GMT

Hi Adam,

We've been discovering that the different Apeman cameras seem to have quite a variation in functionality. I was just wondering which camera you have. And how you have it configured.

I have an A80 which appears to work just fine but Fred and Dave have an A77 and an A66 which don't seem to work as a live video source via the HDMI output.

Thanks,

Ralph

RE: Problem with PYNZ-Z2 and HDMI output from camera

ralphjy — Thu, 16 Apr 2020 16:25:33 GMT

I think that I’ll set up an RPi0W as an HDMI source as a backup. Luckily I already have a mini HDMI cable and camera for it. I’ll just have to print a case. Too bad they didn’t use the micro HDMI connector. It’s a mess with so many different cables and adapters between all the HDMI and USB variants.

RE: Problem with PYNZ-Z2 and HDMI output from camera

ralphjy — Thu, 16 Apr 2020 15:53:51 GMT

My A80 has a 2" screen and has V3.1.0.1-A firmware. I saw a review that indicates there is an update to V3.1.0.2-A to fix a zooming issue when using EIS .

The HDMI output works as I expected - the display screen blanks and the output goes to the HDMI port. The current mode setting does not change and all of the buttons work as normal - just using an external display. It will output live or recorded content with OSD on or off. The USB webcam also works (I haven't tried both simultaneously - using different computers - may try later). The only issue I have with the USB is that once I set the mode (Mass Storage vs Webcam) - I have to power cycle to change the mode. With the PYNQ-Z2 the only issue I've had is forgetting to disable the screensaver. The HDMI out shuts off when the screensaver kicks in and I didn't notice because the camera display was off.

Problem with PYNZ-Z2 and HDMI output from camera

Fred27 — Fri, 10 Apr 2020 09:15:02 GMT

I'm currently making sure I'm in a good position to hit the ground running with the upcoming PYNQ-Z2 workshops. I bought the recommended kit including an Apeman A77 camera and thought I'd just have a quick poke around in advance. I ran through the "getting started" and the Pynq 2.5 image includes some simple HDMI examples. (I hope I'm not jumping too far ahead, but like to be prepared.)

Anyway, as I start to run the HDMI example I get a kernel died error (as shown). You can see on screen what's been run. This is just wiring HDMI out to show what's on HDMI in. The error is completely repeatable. Nothing noteworthy in /var/log/jupyter.log to give any clue.

[View:/resized-image/__size/620x505/__key/communityserver-discussions-components-files/193/2744.contentimage_5F00_134052.png:620:505]

As quick Google suggested that maybe the image is too high resolution, and when I checked the camera on my TV it outputs 1080p at 60fps regardless of the resolution of video being captured. Could 1080p be too much? Time to switch to a Raspberry Pi 4 where I can change resolution properly. The above example ran quite happily with the Pi at a lower resolution, but surprised me when it also ran using the Pi at 1920x1080 at 60fps too.

Is this camera (Apeman A77) compatible with the HDMI on the PYNQ-Z2? I'd have expected it to be as it was the recommended kit and the Crosstour one listed now is essentially the same model.

I'll try to do more digging into any subtle differences between the HDMI output of the Pi and the camera, but all I have is a TV that shows some info on the input. Anyone else have any ideas?

RE: Problem with PYNZ-Z2 and HDMI output from camera

Fred27 — Thu, 16 Apr 2020 13:28:20 GMT

My A77 has a 2" screen. It does support live video out (with some OSD constantly overlaid on top) and my TV is happy to display this, just not the PYNQ-Z2. To be honest, I've given up on the camera as an input for these workshops. It's fine as a camera though.

RE: Problem with PYNZ-Z2 and HDMI output from camera

beacon_dave — Thu, 16 Apr 2020 13:19:22 GMT

I was looking through the Q&A on Amazon for the A80 camera and spotted this:

which sounds the same as what I'm experiencing on the A66 version of the camera.

It looks like current versions of the camera no longer support the live video out on HDMI feature that previous versions supported. Does your A80 have the 2" screen (diagonal) or the smaller 1.8" one, as this may be an indicator of when features changed ?

RE: Problem with PYNZ-Z2 and HDMI output from camera

Fred27 — Thu, 16 Apr 2020 10:50:47 GMT

I'm very happy with my Raspberry Pi as a HDMI source. It works fine, is very and unsurprisingly I have one or two lying around.

Luckily, my boys seem to have taken to the A77 and intend to be YouTube superstars. It already has a new home.

RE: Problem with PYNZ-Z2 and HDMI output from camera

beacon_dave — Thu, 16 Apr 2020 10:26:36 GMT

Yes, it is odd that there appears to be significant differences in the operation between the various camera models.

The OSD option is there on the A66. There are 5 screens of option settings but nothing obvious to get live camera video out of the HDMI port.

As soon as the PYNQ-Z2 is configured to use the HDMI ports, the camera's on-screen display briefly switches from live video mode to photo viewer mode then turns itself off. Once displaying on HDMI output, the camera buttons only allow you to cycle through the stored images; there doesn't appear to be any way to access the settings menu or put it back in camera mode. How does this behaviour compare with the A80 ? Does the A80 automatically go into photo viewer mode or does it remain in the mode the camera was in before connecting the display ? Once viewing on the HDMI display, do all the camera buttons on the A80 operate the same as they do when using the internal display ?

Does the A80 have the USB webcam mode ? I'm just wondering if some HDMI features were lost when they implemented that feature. Something I need to try is what happens on the HDMI output when the camera is in USB webcam mode. You however need the camera to be connected to a host computer via USB before you get the settings for mass storage or webcam use.

What doesn't really help is all the auto standby features of modern equipment. The camera needs to see the EDID or CEC signal from the display device to wake up its HDMI output. The display needs to see a valid sync signal from the source device to come out of standby. PYNQ expects to see a stable input signal to avoid killing the kernel. Ideally could do with a couple of PYNQ notebooks to test one half at a time, e.g. camera to PYNQ-Z2 and PYNQ-Z2 to display, with options for the PYNQ-Z2 to output EDID info from its HDMI input, or to pass the EDID through from the display via its HDMI output.

I have a Kodak PlaySport action cam which has a mini HDMI output but unfortunately it has become rather temperamental and no longer reliably powers up. Shame as it was a robustly built camera otherwise.